NWS Forecast Office Houston/Galveston, TX

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Last Map Update: Mon, May 18, 2026 at 9:52:26 am CDT

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Increasing Rainfall Chances

Increasing Rain Chances Tuesday Onward

Small Craft Advisory

Current radar loop for Houston, TX.

Rain chances will increase significantly starting Tuesday and lasting through next weekend with several rounds of showers and thunderstorms expected. Otherwise expect lots of cloud cover and near normal temperatures through the week.

An unsettled weather pattern will result in increasing chances of showers and thunderstorms beginning Tuesday afternoon into Wednesday and lasting through the end of the week. Periods of locally heavy rainfall will be possible especially north of I-10.

A Small Craft Advisory is now in effect until Tuesday morning from High Island to Matagorda Ship Channel out 60 nautical miles, including Galveston Bay and Matagorda Bay. Winds will be out of the southeast at 20 kts. with gusts to 25 kts. Seas will be 5-8 ft with rough bay waters.

Current Weather Observations...

Location	Time (CDT)	Weather	Vsby. (SM)	Temp. (ºF)	Dewpt. (ºF)	Hum. (%)	Wind (mph)	Wind Chill / Heat Index (ºF)	Pres. (in)
Crockett	01:35	Rain \ Mist \ Lightning Observed	3	66	66	100	CALM	-	30.09
Caldwell	09:15	Overcast	10	78	73	83	SSE 15G24	-	29.90
College Station	08:53	Overcast	10	79	73	82	SSE 14	-	29.91
Huntsville	08:53	Overcast	10	79	73	82	S 8G17	-	29.95
Navasota	09:35	Overcast	10	80	78	93	S 14G22	-	29.90
Conroe	08:53	Overcast	10	79	73	82	SSE 10	-	29.94
Hooks Airport	08:53	Overcast	8	80	73	79	SSE 10G22	-	29.93
Intercontinental Airport	08:53	Overcast	10	81	73	76	SSE 14G25	-	29.93
Houston Hobby Airport	09:05	Overcast	10	81	74	79	SSE 14G23	-	29.93
Sugar Land	09:32	Overcast	10	80	74	81	SE 12G23	-	29.92
Wharton	09:35	Overcast	10	82	74	78	SE 13G21	-	29.91
Pearland	09:06	Mostly Cloudy	8	80	73	79	SSE 18G29	-	29.95
Ellington Field	08:54	Overcast	10	80	73	78	SE 17G25	-	29.91
La Porte	09:15	Overcast	10	80	74	82	SE 17G24	-	29.94
Angleton/Lake Jackson	08:53							-	29.93
Galveston	08:52	Overcast	10	80	76	87	SSE 18G29	-	29.94
Bay City	09:35	Partly Cloudy	10	82	80	93	ESE 18G28	94 [HI]	29.85
Palacios	09:08	Overcast	7	81	76	84	SE 22G31	-	29.87
Rig 20 Miles SE of Galveston	09:35	Mist	4	78	75	88	SE 28	-	29.96
Rig 20 Miles SE of Matagorda	09:40	Mist	5	80	80	100	SE 14G20	-	29.93

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